Eccentric handle device

ABSTRACT

An eccentric handle device which can be adapted for guiding rails of different sizes includes a base body ( 3 ), a pressure block ( 4 ), a pull rod ( 5 ), a pin ( 6 ), an eccentric handle ( 8 ) and a nut ( 1 ). The base body ( 3 ) is matched with the pressure block ( 4 ). The rod ( 5 ) passes through the base body ( 3 ) and the pressure block ( 4 ) respectively. One end of the rod ( 5 ) is movably connected with the eccentric handle ( 8 ) via the pin ( 6 ), the other end crosses the base body ( 3 ), and the rod is matched with the nut ( 1 ) by thread. The distance between the pressure block ( 4 ) and the base body ( 3 ) can be adjusted by rotating the nut ( 1 ), thus the device can be applicable to guiding rails of different sizes. The device can be widely used in the field of firearm aimer.

FIELD OF THE INVENTION

The present invention relates to an eccentric handle device.

BACKGROUND OF THE INVENTION

The structure which need locking and unlocking frequently between parts can be seen in various fields during daily life and working. Owing to the adoption of eccentric handle locking device, the structures which need locking and unlocking frequently have become simple, and the operation has become more quick and convenient. Moreover, such locking device can also be used in the field of firearms to lock firearm aimer or other attachments used in the firearms on a guiding rail of the firearms quickly in this manner. However, in practical application, the locking device cannot be pressed tightly if the guiding rail of some firearms is smaller, otherwise the locking device cannot be mounted or is easy to break after being mounted if the guiding rail is larger, so that there are some inconveniences.

SUMMARY

The technical problem that the present invention aims to solve is to overcome shortcomings in the prior art and provide an eccentric handle device which can be applicable to guiding rails of different sizes by adjusting.

The technical scheme of the present invention is: the present invention includes a base body, a pressure block, a pull rod, a pin, an eccentric handle and a nut, wherein the base body is matched with the pressure block. The pull rod passes through the base body and the pressure block respectively. One end of the pull rod is movably connected with the eccentric handle via the pin, the eccentric handle device further comprises a nut, and the other end of the pull rod penetrates through the base body and is matched with the nut by thread.

The periphery of the nut is provided with a plurality of recesses, and the base body is provided with a positioning pin which corresponds to the plurality of recesses.

A long slot is provided on the body of the pull rod, and the base body is provided with a banking pin which is matched with the long slot.

The eccentric handle device further comprises a self-locking means which is provided on the eccentric handle. The self-locking means includes a locking bar, a toggle block and a pressure spring that are arranged in the inner hole of the eccentric handle, wherein the toggle block is connected with the locking bar by thread and the toggle block is connected with one end of the locking bar. The pressure spring presses against the lower end of the locking bar and the bottom of inner hole of the eccentric handle respectively. And the axial head of the pull rod is provided with a recess which is matched with the top of the locking bar.

The beneficial effects of the present invention are: as the present invention includes a base body, a pressure block, a pull rod, a pin, an eccentric handle and a nut, the base body is matched with the pressure block, the pull rod passes through the base body and the pressure block respectively, one end of the pull rod is movably connected with the eccentric handle via the pin, the eccentric handle device further comprises a nut, the other end of the pull rod penetrates through the base body and is matched with the nut by thread, the base body and the pressure block are locked tightly on the guiding rail via rotating the eccentric handle, and the distance between the pressure block and the base body can be adjusted by rotating the nut to be applicable to the guiding rails of different sizes, the present invention can be applicable to guiding rails of different sizes through adjusting.

As the periphery of the nut is provided with a plurality of recesses, the base body is provided with a positioning pin which corresponds to the plurality of recesses, and the looseness of the nut is prevented by the positioning pin, so that the present invention is compact in structure.

As a long slot is provided on the base body of the pull rod, the base body is provided with a banking pin which is matched with the long slot, and the detachment of the pull rod from the base body during adjusting the interval is prevented by the banking pin, the using effect of the present invention is very good.

As the present invention includes a self-locking means including a locking bar, a toggle block and a pressure spring that are arranged in the inner hole of the eccentric handle, the toggle block is connected with the locking bar by thread, the toggle block is connected with one end of the locking bar, the pressure spring presses against the lower end of the locking bar and the bottom of the inner hole of the eccentric handle respectively, and the shaft head of the pull rod is provided with a recess which is matched with the top of the locking bar, the locking of the device can be realized by turning the eccentric handle downwards while locking. Meanwhile, when the locking bar rotates to a position corresponding to the recess on the shaft head of the pull rod, the locking bar is pushed upwards and matched with the recess under the elastic force of the pressure spring, thereby realizing the self-locking. Hence, during use, the phenomenon that the locking device is not fixedly secured or even falls off, caused by the unavoidable vibration and collision or the users' carelessness, can be avoided, thereby achieving a fast, convenient and safe locking effect.

BRIEF DESCRIPTION OF DRAWINGS

FIG. 1 is a schematic view of an explosive structure of the present invention;

FIG. 2 is a transverse cross-sectional view of the present invention in a locked state;

FIG. 3 is a longitudinal cross-sectional view of the present invention in a locked state;

FIG. 4 is a side schematic view of structure of the present invention in a locked state;

FIG. 5 is a transverse cross-sectional view of the present invention in an unlocked state;

FIG. 6 is a longitudinal cross-sectional view of the present invention in an unlocked state.

DETAILED DESCRIPTION OF THE EMBODIMENTS

As shown in FIGS. 1, 2, 3, 4, 5 and 6, the present invention includes a nut 1, a gasket 2, a base body 3, a pressure block 4, a pull rod 5, a cylindrical pin 6 and an eccentric handle 8. The nut 1 and the gasket 2 are matched with the pull rod 5 by thread, the pull rod 5 and the eccentric handle 8 are positioned and mounted by the pin 6, and the pin 6 acts as a rotation axis of the eccentric handle 8. A locking bar 7, a toggle block 9 and a pressure spring 10 are arranged in the inner hole of the eccentric handle 8, the toggle block 9 is connected with the positioning pin 7 by thread, and the pressure spring 10 presses against the lower end of the locking bar 7 and the bottom of inner hole of the eccentric handle 8 respectively. The shaft head of the pull rod 5 is provided with a recess 17 which is fitted with the top of the locking bar 7, the periphery of the nut 1 is provided with a plurality of recesses 12, and the base body 3 is provided with a positioning pin 13 which corresponds to the recesses 12. If the size of the guiding rail 20 is not matched with the bottom of a firearm aimer, the distance between pressure block 4 and the base body 3 could be adjusted by rotating the nut 1 inwards or outwards, so as to be adapted for firearms with guiding rails of different sizes. Meanwhile, the recess 12 of the nut 1 is engaged with the positioning pin 13, to prevent the looseness of firearm aimer after mounting, so that the eccentric handle structure becomes more compact. A long slot 14 is provided on the body of the pull rod 5, and a banking pin 15 matched with the long slot 14 is provided on the base body 3. The banking pin 15 can prevent the nut 1 from detaching from the pull rod 5 when adjusting the nut 1, making the effect of the eccentric handle device in use better.

While mounting, the clamping portion of the base body 3 is aligned with guiding rail 20 matching with the firearm aimer, then the eccentric handle 8 is turned by the palm and rotates pivotally around the cylindrical pin 6. During rotating, the distance between the axis of the eccentric handle 8 and the pressure block 4 increases, thus the pressure block 4 is pressed and moves forward on the pull rod 5, so the guiding rail 20 is gradually clamped. When the eccentric handle 8 rotates to a certain angle, the locking bar 7 corresponds to the recess 17 on the shaft head of the pull rod 5. Because of the elastic force of the pressure spring 10, the locking bar 7 is pushed into the recess 17 and clamped immediately, namely, completely self-latching motion, then the device is in a safe locking state, thereby achieving self-locking. Hence, the phenomenon that locking device is not fixedly secured or even falls off, caused by unavoidable vibration and collision or the users' carelessness in use, can be avoided, so that a fast, convenient and safe locking effect can be achieved. When an unlocking is needed, the toggle block 9 is pushed by hand to make upper end of the positioning pin 7 exit from the recess 17, then the eccentric handle 8 is rotated to make the pressure block 4 move backwards and leave the guiding rail 20. The firearm aimer can be taken out when the pressure block 4 has left the guiding rail 20 completely, so that the structures which is needed to be locked and unlocked frequently becomes simpler, and the operation is faster and more convenient.

The present invention can be widely applied to the field of firearms. 

1. An eccentric handle device, including a base body, a pressure block, a pull rod, a pin and an eccentric handle, wherein said base body is matched with said pressure block, said rod passes through said base body and said pressure block respectively, and one end of said rod is movably connected with said eccentric handle via said pin; wherein said eccentric handle device further comprises a nut, the other end of said pull rod penetrates through said base body and is matched with said nut by thread.
 2. The eccentric handle device according to claim 1, wherein the periphery of said nut is provided with a plurality of recesses, and said base body is provided with a positioning pin which corresponds to the plurality of recesses.
 3. The eccentric handle device according to claim 2, wherein a long slot is provided on the body of said pull rod, and said base body is provided with a banking pin which is matched with said long slot.
 4. The eccentric handle device according to claim 1, wherein said eccentric handle device further comprises a self-locking means which is provided on said eccentric handle, said self-locking means includes a locking bar, a toggle block and a pressure spring that are arranged in the inner hole of said eccentric handle, said toggle block is connected with said locking bar by thread, said toggle block is connected with one end of said locking bar, the pressure spring presses against the lower end of said locking bar and the bottom of the inner hole of said eccentric handle respectively, the shaft head of said pull rod is provided with a recess matching with the top end of said locking bar.
 5. The eccentric handle device according to claim 2, wherein said eccentric handle device further comprises a self-locking means which is provided on said eccentric handle, said self-locking means includes a locking bar, a toggle block and a pressure spring that are arranged in the inner hole of said eccentric handle, said toggle block is connected with said locking bar by thread, said toggle block is connected with one end of said locking bar, the pressure spring presses against the lower end of said locking bar and the bottom of the inner hole of said eccentric handle respectively, the shaft head of said pull rod is provided with a recess matching with the top end of said locking bar.
 6. The eccentric handle device according to claim 3, wherein said eccentric handle device further comprises a self-locking means which is provided on said eccentric handle, said self-locking means includes a locking bar, a toggle block and a pressure spring that are arranged in the inner hole of said eccentric handle, said toggle block is connected with said locking bar by thread, said toggle block is connected with one end of said locking bar, the pressure spring presses against the lower end of said locking bar and the bottom of the inner hole of said eccentric handle respectively, the shaft head of said pull rod is provided with a recess matching with the top end of said locking bar. 